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Entropy study in the von Kármán model with variable thermo-physical properties and radiation

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  • Khan, Mair
  • Salahuddin, T.
  • Lv, Yu-Pei

Abstract

In this paper, entropy generation of an incompressible boundary layer flow over a heated rotating disk is studied. The energy equation is considered under the effect of solar radiation. Gas and liquid type fluids are considered for boundary layer problem. The viscosity of both fluids depend on temperature. Temperature dependence in the fluid viscosity is analyzed to convert the base flow profiles range and expand the mean temperature distribution. In this analysis, The fluid properties are assumed to be variable. The boundary layer equations are reduced into ordinary differential equations by the von Kármán similarity approach. Numerical solution of the ordinary differential equations are performed by using a shooting method. We determine the base flow and entropy profiles and gives physical aspect of the problem through graphs and tables. Correlations in term of entropy and base flow solutions are plotted graphically. The comparative results is computed for a limited case and good agreement is founded with previously published article.

Suggested Citation

  • Khan, Mair & Salahuddin, T. & Lv, Yu-Pei, 2021. "Entropy study in the von Kármán model with variable thermo-physical properties and radiation," Chaos, Solitons & Fractals, Elsevier, vol. 147(C).
    • Handle: RePEc:eee:chsofr:v:147:y:2021:i:c:s0960077921003416
    DOI: 10.1016/j.chaos.2021.110987
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    References listed on IDEAS

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    1. Khan, Mair & Salahuddin, T. & Malik, M.Y. & Khan, Farzana, 2020. "Change in internal energy of Carreau fluid flow along with Ohmic heating: A Von Karman application," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 547(C).
    2. Arikoglu, Aytac & Ozkol, Ibrahim & Komurgoz, Guven, 2008. "Effect of slip on entropy generation in a single rotating disk in MHD flow," Applied Energy, Elsevier, vol. 85(12), pages 1225-1236, December.
    3. Khan, Mair & Salahuddin, T. & Stephen, S.O., 2020. "Thermo-physical characteristics of liquids and gases near a rotating disk," Chaos, Solitons & Fractals, Elsevier, vol. 141(C).
    4. Bejan, Adrian, 1980. "Second law analysis in heat transfer," Energy, Elsevier, vol. 5(8), pages 720-732.
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